Introduction

Whether you're a landlord protecting your investment or a tenant wanting greater peace of mind, improving the security of a rental property doesn't have to involve replacing doors or windows. In many cases, upgrading the locks, adjusting the doors and maintaining the existing hardware can significantly improve security while reducing future maintenance costs.

For landlords, well-maintained doors and quality locks help reduce emergency call-outs, protect the property and improve tenant satisfaction. For tenants, they provide reassurance that the home is secure and that only authorised people have access.

Change the Locks Between Tenancies

One of the most important security measures is changing the locks whenever a tenant moves out.

There is no way of knowing:

• How many spare keys have been cut.
• Whether previous tenants gave keys to friends or family.
• If cleaners, contractors or neighbours still have copies.

Replacing the locks ensures the incoming tenant has complete control over who has access to the property.

Upgrade to Anti-Snap Locks

Many rental properties still have older standard euro cylinders fitted to uPVC and composite doors.

Upgrading to a modern anti-snap cylinder provides protection against:

• Lock snapping.
• Lock drilling.
• Lock picking.
• Lock bumping.

This relatively inexpensive upgrade can greatly improve the security of the property.

Ensure Lock Cylinders Are the Correct Size

A surprisingly common problem is finding euro cylinders that protrude well beyond the door handles.

This can:

• Create a security weakness.
• Make lock snapping easier.
• Look untidy.

A correctly sized cylinder should sit as close to flush with the handle as possible while operating smoothly.

Install TS007 Security Handles

If the property has uPVC or composite doors, fitting TS007 2 Star security handles provides additional protection around the euro cylinder.

When combined with a 1 Star anti-snap cylinder, they achieve TS007 3 Star security, protecting both the cylinder and the surrounding door furniture.

Check Door Alignment

Even the highest security lock won't perform properly if the door is out of alignment.

Common warning signs include:

• Difficulty locking.
• Handles hard to lift.
• Keys becoming stiff.
• Draughts around the door.
• Having to push or pull the door to lock it.

Correct alignment ensures:

• Every locking point engages properly.
• Less strain is placed on the gearbox.
• Locks operate smoothly.
• The door seals correctly against the frame.

It also helps extend the lifespan of the entire locking system.

Upgrade Timber Door Security

Many rental properties still have timber entrance doors.

Simple upgrades include fitting:

• BS3621 mortice locks.
• BS8621 mortice locks where keyless emergency escape is required.
• Kitemarked Yale nightlatches.
• Reinforced keeps.
• Door viewers.
• Security chains where appropriate.

Many insurers recognise BS3621 locks as meeting their security requirements for external timber doors.

BS8621 locks provide the same level of security but allow occupants to unlock the door from the inside using a thumbturn, making emergency escape quicker and safer.

HMO and Shared Accommodation

Security requirements for Houses in Multiple Occupation (HMOs) can differ from standard residential properties.

Depending on the building and local fire safety requirements, landlords may need:

• Thumbturn euro cylinders on escape routes.
• BS8621 mortice locks on timber escape doors.
• Fire-rated door hardware.
• Appropriate communal entrance locks.
• Individual room locks.
• Master key or suited key systems where appropriate.

It's important that security upgrades never compromise emergency escape.

Consider Keyed Alike or Master Key Systems

For landlords managing several access points, key management can quickly become complicated.

Options include:

Keyed Alike Locks

One key operates:

• Front door.
• Rear door.
• Garage.
• Side entrance.

This is convenient for single residential properties.

Master Key (Suited) Systems

These are ideal for:

• HMOs.
• Apartment buildings.
• Commercial properties.
• Larger residential developments.

Different users can be given different levels of access while the landlord or property manager retains a master key.

Maintain Locks Before They Fail

Preventative maintenance can significantly reduce emergency repairs.

Regular servicing includes:

• Lubricating locking points.
• Checking hinges.
• Inspecting handles.
• Testing cylinders.
• Adjusting doors when necessary.
• Checking weather seals.

Many expensive failures begin as small alignment issues that could have been corrected quickly.

Improve External Security

Simple external improvements can make the property less attractive to opportunist burglars.

Consider installing:

• Motion-activated lighting.
• CCTV cameras.
• Video doorbells.
• Clearly visible house numbers.
• Secure side gates.

A well-maintained property generally presents a stronger visual deterrent.

Secure Every Access Point

Don't focus solely on the front door.

Check the security of:

• Rear doors.
• Patio doors.
• French doors.
• Conservatory doors.
• Garage doors.
• Side entrances.
• Ground-floor windows.
• Garden offices and workshops.

Burglars often choose the weakest point of entry rather than the main entrance.

Keep Door Furniture in Good Condition

Door furniture should be inspected regularly.

Replace worn:

• Handles.
• Letterboxes.
• Hinges.
• Cylinders.
• Locks.

Quality sprung handles also reduce strain on the gearbox, helping to prolong the life of the multipoint locking mechanism.

Benefits for Both Landlords and Tenants

Maintaining secure, properly functioning doors provides advantages for everyone.

For landlords:

• Protects the property.
• Reduces emergency repairs.
• Extends component lifespan.
• Improves tenant satisfaction.
• Helps preserve the property's value.

For tenants:

• Greater security.
• Smooth, reliable operation.
• Better weather sealing.
• Improved peace of mind.
• Confidence that only authorised people have keys.

Conclusion

Improving the security of a rental property doesn't have to involve major expense. Simple upgrades such as changing the locks between tenancies, fitting anti-snap cylinders, installing TS007 security handles, upgrading timber doors with BS3621 or BS8621 locks where appropriate, and ensuring doors are correctly aligned can dramatically improve both security and reliability. Regular maintenance also helps prevent unexpected lock failures, reduces long-term repair costs and keeps the property safe for its occupants. Whether you're a landlord protecting your investment or a tenant looking for added reassurance, investing in quality locks and preventative maintenance is one of the most cost-effective improvements you can make.